Have Fun Guessing

A Stumbling Block or a Stepping Stone
	Each is given a set of tools,
Isn't it strange that Princes and Kings	A shapeless mass, and a book of rules,
And clowns who caper in stardust rings,	And each must make, ere life has flown,
And common people like you and me	A stumbling block or a stepping stone.
Are builders for eternity?	(Author Unknown)